Answer:
Walking to the right and downwards to reach B from A.
Approximately [tex]1.6[/tex] miles.
Step-by-step explanation:
Route 1 - Walking to the right and downwards to reach B from A:
The distance is [tex]2.1+3.8=5.9[/tex] miles
Route 2 - Walking straight to B from A:
[tex]\sqrt{3.8^2+2.1^2} = \sqrt{14.44+4.41}[/tex] (using the Pythagorean theorem, the two lengths are perpendicular)
[tex]=\sqrt{18.85}[/tex]
[tex]=4.341658669[/tex] miles (approximately from calculator)
Since [tex]5.9[/tex] miles is greater than [tex]4.341658669[/tex] miles, therefore walking to the right and downwards to reach home from work is the longest distance.
Difference in distance:
[tex]5.9-4.341658669=1.558341331[/tex] miles
Route 1 is longer than route 2 by [tex]1.558341331[/tex] miles, or approximately [tex]1.6[/tex] miles.